S2000 STR prep resource
Joined: Mar 2009
Posts: 1,865
Likes: 38
Originally Posted by Rodney,Jan 6 2010, 01:23 PM
or how about the guy that beat him at the last couple events? 
But, Anyway id be glad to let you co-drive and event or two to see how my car does with a driver who actually knows what they are doing!
Registered User
Joined: Jun 2006
Posts: 2,540
Likes: 0
From: Lexington, Ky
Originally Posted by sirbunz,Jan 6 2010, 03:29 PM
Dave, we should do a dyno day (same dyno, same day) before and after the cars are tuned. Maybe some others can join? I'm sure this will help give some data out to the community. We can both use the same wheel/tire setup if it matters.
Registered User
Joined: Jun 2009
Posts: 528
Likes: 0
From: Chicago
I own a MY04 and because of the leaning issue associated with air mods on an AP2, I purchased an EMU to adjust fuel trim. Apparently the EMU is not legal in this class? Is there really no other option for us falling in that category without going back to an AP1 ECU+ VAFC?
Joined: Mar 2008
Posts: 1,707
Likes: 0
From: Virginia Beach
Originally Posted by sirbunz,Jan 6 2010, 05:40 PM
Lastly, I never fall out of v-tec when I shift 
It should be somewhere above 6200rpm from 1st to 2nd when done properly...
It should be somewhere above 6200rpm from 1st to 2nd when done properly...
Joined: May 2004
Posts: 1,531
Likes: 3
From: Tucson
Originally Posted by Random1,Jan 4 2010, 11:29 PM
What is an approproximate free length for springs based on travel? Shock body/threads may dictate otherwise. Are helper springs required? How much is practical to lower the car from stock?
I am planning to start at 600 lb all the way around and initially lower about 0.75 inch front and 1 inch rear. I daily drive my car, so it will be a tough balance. I don't know what free length to get and if helper springs are needed. I have a set of Penkse 8100s that are in the process of being rebuilt/valved with 600 lb springs in mind.
Life in stock class was so simple!
I am planning to start at 600 lb all the way around and initially lower about 0.75 inch front and 1 inch rear. I daily drive my car, so it will be a tough balance. I don't know what free length to get and if helper springs are needed. I have a set of Penkse 8100s that are in the process of being rebuilt/valved with 600 lb springs in mind.
Life in stock class was so simple!
Registered User
Joined: Jan 2004
Posts: 67
Likes: 0
From: Long Beach
Well if your Penske shocks are stock in length, then you cannot lower much w/o compromising suspension travel. I just installed my front Koni shocks with 8 inch 440 spring rate. At first, I set the ride hieght at 1 inch lower than stock, but that barely left any suspension travel. I usually target 1 inch suspension travel. I raised the hieght 0.5 an inch and I got about 1 inch travel.
I am running 245/40/17 tires with 17x8.5 wheels all around. The stock ride height was 25.75 inch. Now it sits at around 25.25 inch.
If you really want to run lower than 0.5 inch, then you should think about shorter dampers than stock.
I am running 245/40/17 tires with 17x8.5 wheels all around. The stock ride height was 25.75 inch. Now it sits at around 25.25 inch.
If you really want to run lower than 0.5 inch, then you should think about shorter dampers than stock.
Joined: Aug 2002
Posts: 730
Likes: 0
From: Honda HQ
Originally Posted by nj1266,Jan 7 2010, 11:13 PM
Well if your Penske shocks are stock in length, then you cannot lower much w/o compromising suspension travel. I just installed my front Koni shocks with 8 inch 440 spring rate. At first, I set the ride hieght at 1 inch lower than stock, but that barely left any suspension travel. I usually target 1 inch suspension travel. I raised the hieght 0.5 an inch and I got about 1 inch travel.
I am running 245/40/17 tires with 17x8.5 wheels all around. The stock ride height was 25.75 inch. Now it sits at around 25.25 inch.
If you really want to run lower than 0.5 inch, then you should think about shorter dampers than stock.
I am running 245/40/17 tires with 17x8.5 wheels all around. The stock ride height was 25.75 inch. Now it sits at around 25.25 inch.
If you really want to run lower than 0.5 inch, then you should think about shorter dampers than stock.
it looks like you're running the full bumpstop. Trimming should give you some of that travel back.
Also, adding an upper perch will also help keep the spring coaxial with the shaft.
James Yom
Joined: Aug 2002
Posts: 730
Likes: 0
From: Honda HQ
Originally Posted by sirbunz,Jan 6 2010, 04:40 PM
That is good to consider, but I do feel differently about a couple of things here...
The tracked AP2s with the same setup takes a much bigger beating due to the temperatures the motors reach. An auto-x S2000 will never see those temperatures unless something is wrong. The tracked cars also stay in the revs much longer. The amount of time the tracked cars spend in the throttle in one track day would account for many seasons of auto-x. This is according to the track guys who prep my car and the credible info found here on s2ki.
Also, I would much rather buy a autocrossed S2000 than any one that has been modified for the street, drag, track, pimped, etc. Looking at the field at Nationals, most the owners take good care of them. Again, there are many people having success with the bumped rev limiter and for many years now. That still wouldn't stop me from keeping a fresh motor around as a spare.
The tracked AP2s with the same setup takes a much bigger beating due to the temperatures the motors reach. An auto-x S2000 will never see those temperatures unless something is wrong. The tracked cars also stay in the revs much longer. The amount of time the tracked cars spend in the throttle in one track day would account for many seasons of auto-x. This is according to the track guys who prep my car and the credible info found here on s2ki.
Also, I would much rather buy a autocrossed S2000 than any one that has been modified for the street, drag, track, pimped, etc. Looking at the field at Nationals, most the owners take good care of them. Again, there are many people having success with the bumped rev limiter and for many years now. That still wouldn't stop me from keeping a fresh motor around as a spare.
And when I said I wouldn't pick up an autoxcrossed S2000, that was obviously comparing with a stock S2000, not some modified one. I don't have the money or luxury of havinga spare engine lying around
[QUOTE]Lastly, I never fall out of v-tec when I shift